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Finding the Fourth Proportional to 9,956.07, 13,739.52 and 5,479.77

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Solution

The fourth proportional to 9,956.07, 13,739.52 and 5,479.77 is: 7,562.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,956.07 : 13,739.52 = 5,479.77 : x
  2. Step 2: Convert to fraction form
    9,956.07/13,739.52 = 5,479.77/x
  3. Step 3: Cross multiply
    9,956.07x = 13,739.52 × 5,479.77
  4. Step 4: Simplify right side
    9,956.07x = 75,289,409.51
  5. Step 5: Solve for x
    x = 75,289,409.51/9,956.07
  6. Step 6: Final answer
    x = 7,562.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.